Magic: Force Wall and Utter Wall questions

[Kromm]

A Force Wall is just a stretched-out, linear Force Dome. It has exactly the same strengths and weaknesses. The only relevant difference is geometry: It doesn't enclose a space, so it can't very well keep out dangerous gases, or maintain an internal temperature or atmosphere (if you sealed a doorway with it, of course, you might be able to arrange for that). Anyway, this means that magic other than Missile spells, and all magical creatures and magic items, can pass right through it.

An Utter Wall is just a stretched-out, linear Utter Dome. The same logic as above applies to it; in particular, it has no interior within which summoning is forbidden. I agree with the interpretation of its protection as Pentagram-like, rather than Spell Wall-like (yes, that's an erratum!). This means that it may prevent weaker magical creatures – ones with low (ST+Will)/2 – from passing through it.

[T.K.]

Originally Posted by Kromm

A Force Wall is just a stretched-out, linear Force Dome. It has exactly the same strengths and weaknesses. The only relevant difference is geometry: It doesn't enclose a space, so it can't very well keep out dangerous gases, or maintain an internal temperature or atmosphere (if you sealed a doorway with it, of course, you might be able to arrange for that). Anyway, this means that magic other than Missile spells, and all magical creatures and magic items, can pass right through it.

An Utter Wall is just a stretched-out, linear Utter Dome. The same logic as above applies to it; in particular, it has no interior within which summoning is forbidden. I agree with the interpretation of its protection as Pentagram-like, rather than Spell Wall-like (yes, that's an erratum!). This means that it may prevent weaker magical creatures – ones with low (ST+Will)/2 – from passing through it.

Nice!

As a follow up if you're still around Dr. Kromm, I remember seeing a thread where you specify that a Meteoric Arrow IS affected by the armor granted by the "Armor" Spell...

Considering Force Wall/Utter Dome/Utter Wall are also Protection spells that could be inferred to be an advanced/improved version of the more basic "Armor" Spell, would those also affect a Meteoric Arrow, stopping it or would the arrow simply ignore those and pass as if they did not exist?

[Not another shrubbery]

Originally Posted by T.K.

As a follow up if you're still around Dr. Kromm, I remember seeing a thread where you specify that a Meteoric Arrow IS affected by the armor granted by the "Armor" Spell...

I don't remember one specifically about Armor... Was this the one you were thinking of?

[sir_pudding]

Originally Posted by T.K.

As a follow up if you're still around Dr. Kromm, I remember seeing a thread where you specify that a Meteoric Arrow IS affected by the armor granted by the "Armor" Spell...

I'm fairly sure that he said:
a) A meteoric iron arrow would have to be the entire arrow do this.*
b) A metoric iron projectile would pass through an armor spell. It doesn't pass through a fortify enchantment.

*There aren't actually any rules for this in DF. So you actually can't do it anyway, unless you allow it. We worked out stats for meteoric iron arrows with "The Deadly Spring" here, though. I finally went with:
+70 CF; x5 wt; -1 Acc; +2/die damage; x1/3 range.

[Lancewholelot]

Originally Posted by Kromm

A Force Wall is just a stretched-out, linear Force Dome. It has exactly the same strengths and weaknesses. The only relevant difference is geometry: It doesn't enclose a space, so it can't very well keep out dangerous gases, or maintain an internal temperature or atmosphere (if you sealed a doorway with it, of course, you might be able to arrange for that). Anyway, this means that magic other than Missile spells, and all magical creatures and magic items, can pass right through it.

An Utter Wall is just a stretched-out, linear Utter Dome. The same logic as above applies to it; in particular, it has no interior within which summoning is forbidden. I agree with the interpretation of its protection as Pentagram-like, rather than Spell Wall-like (yes, that's an erratum!). This means that it may prevent weaker magical creatures – ones with low (ST+Will)/2 – from passing through it.

Thank you for the clarification Kromm.